What is the reason that the surveillance camera shows that it is not online?

There are many reasons. First, see if there is anything wrong with the camera, whether the power supply and BNC are connected properly, and then see if the driver of the acquisition card is installed.

If you use a hard disk video recorder, it depends on whether there is anything wrong with the video recorder.

The monitor is not online, usually the network is not connected, or the IP conflicts.

If so, restart the route and redistribute the IP.

If it is newly installed, check whether there is an IP assigned by the new IPC in the router to see if it can be online.

If there is a fault, it is generally divided into the following categories:

1, the monitoring line connected to the router is faulty.

If you use wireless, please consider the signal problem.

2. The router does not turn on the DMZ function.

If it is intelligent monitoring (single person monitoring, no need to monitor the video recorder), please consider whether the id is normal.

3. The router crashed.

Just restart the router.

4. The broadband account is hung in the operator's server.

You can contact the operator by phone and ask if there is a fault.

5, broadband arrears.

6. The part owned or registered by itself has been monitored and DDNS has expired.

Extended data:

1. The rated voltage of the wire for monitoring camera should be greater than the working voltage of the line; The insulation of the conductor shall conform to the installation mode of the line and the environmental conditions for laying. The cross-sectional area of the conductor should meet the requirements of power supply and mechanical strength.

2. When wiring, try to avoid wires with connectors. In addition to using the connector, the connector of the camera must be crimped or welded, and the wire connection and branch should not be subjected to mechanical force.

3. Wiring should be installed horizontally or vertically in the building. Wiring should be protected by casing (plastic pipe or iron pipe, which should be selected according to the technical requirements of indoor piping), and metal hose can be used for ceiling wiring, but it needs to be fixed firmly and beautifully.

4. The signal line cannot be parallel to the high-power power line, let alone run in the same tube. If you want to walk parallel lines due to environmental restrictions, stay away from more than 50cm.